UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase

S. Langer; E. Ljungström; T. Ellermann; O.J. Nielsen; J. Sehested

doi:10.1016/0009-2614(95)00486-N

UV absorption spectrum of CH₃OCH₂ radicals and kinetics of the reaction of CH₃OCH₂O₂ radicals with NO and NO₂ in the gas phase

S. Langer
, E. Ljungström
, T. Ellermann
, O.J. Nielsen
, J. Sehested

Research output: Contribution to journal › Journal article › Research

Abstract

Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, sigma(CH3OCH2) = (4.2 +/- 0.5) X 10(-18) cm(2) molecule(-1) has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 +/- 1.0) X 10(-12) cm(3) molecule(-1) s(-1) and (7.9 +/- 0.4) X 10(-12) cm(3) molecule(-1) s(-1), respectively.

Original language	English
Journal	Chemical Physics Letters
Volume	240
Issue number	1-3
Pages (from-to)	53-56
ISSN	0009-2614
DOIs	https://doi.org/10.1016/0009-2614(95)00486-N
Publication status	Published - 1995

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title = "UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase",

abstract = "Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, sigma(CH3OCH2) = (4.2 +/- 0.5) X 10(-18) cm(2) molecule(-1) has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 +/- 1.0) X 10(-12) cm(3) molecule(-1) s(-1) and (7.9 +/- 0.4) X 10(-12) cm(3) molecule(-1) s(-1), respectively. ",

keywords = "Atmosf{\ae}riske processers betydning for milj{\o}et",

author = "S. Langer and E. Ljungstr{\"o}m and T. Ellermann and O.J. Nielsen and J. Sehested",

year = "1995",

doi = "10.1016/0009-2614(95)00486-N",

language = "English",

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journal = "Chemical Physics Letters",

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TY - JOUR

T1 - UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase

AU - Langer, S.

AU - Ljungström, E.

AU - Ellermann, T.

AU - Nielsen, O.J.

AU - Sehested, J.

PY - 1995

Y1 - 1995

N2 - Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, sigma(CH3OCH2) = (4.2 +/- 0.5) X 10(-18) cm(2) molecule(-1) has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 +/- 1.0) X 10(-12) cm(3) molecule(-1) s(-1) and (7.9 +/- 0.4) X 10(-12) cm(3) molecule(-1) s(-1), respectively.

AB - Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, sigma(CH3OCH2) = (4.2 +/- 0.5) X 10(-18) cm(2) molecule(-1) has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 +/- 1.0) X 10(-12) cm(3) molecule(-1) s(-1) and (7.9 +/- 0.4) X 10(-12) cm(3) molecule(-1) s(-1), respectively.

KW - Atmosfæriske processers betydning for miljøet

U2 - 10.1016/0009-2614(95)00486-N

DO - 10.1016/0009-2614(95)00486-N

M3 - Journal article

SN - 0009-2614

VL - 240

SP - 53

EP - 56

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3